TY - GEN AU - Prager,E M AU - Wilson,A C TI - Slow evolutionary loss of the potential for interspecific hybridization in birds: a manifestation of slow regulatory evolution SN - 0027-8424 PY - 1975///0611 KW - Animals KW - Biological Evolution KW - Birds KW - anatomy & histology KW - Chromosomes KW - Complement Fixation Tests KW - Electrophoresis, Polyacrylamide Gel KW - Genotype KW - Hybridization, Genetic KW - Immune Sera KW - Immunogenetics KW - Serum Albumin KW - immunology KW - Species Specificity KW - Transferrin N1 - Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S UR - https://doi.org/10.1073/pnas.72.1.200 ER -